1 /*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <stdint.h>
18 #include <sys/types.h>
19
20 #include <utils/Errors.h>
21 #include <utils/RefBase.h>
22 #include <utils/Vector.h>
23 #include <utils/Timers.h>
24
25 #include <binder/Parcel.h>
26 #include <binder/IInterface.h>
27
28 #include <gui/ISurfaceTexture.h>
29
30 namespace android {
31 // ----------------------------------------------------------------------------
32
33 enum {
34 REQUEST_BUFFER = IBinder::FIRST_CALL_TRANSACTION,
35 SET_BUFFER_COUNT,
36 DEQUEUE_BUFFER,
37 QUEUE_BUFFER,
38 CANCEL_BUFFER,
39 SET_CROP,
40 SET_TRANSFORM,
41 QUERY,
42 SET_SYNCHRONOUS_MODE,
43 CONNECT,
44 DISCONNECT,
45 SET_SCALING_MODE,
46 };
47
48
49 class BpSurfaceTexture : public BpInterface<ISurfaceTexture>
50 {
51 public:
BpSurfaceTexture(const sp<IBinder> & impl)52 BpSurfaceTexture(const sp<IBinder>& impl)
53 : BpInterface<ISurfaceTexture>(impl)
54 {
55 }
56
requestBuffer(int bufferIdx,sp<GraphicBuffer> * buf)57 virtual status_t requestBuffer(int bufferIdx, sp<GraphicBuffer>* buf) {
58 Parcel data, reply;
59 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
60 data.writeInt32(bufferIdx);
61 status_t result =remote()->transact(REQUEST_BUFFER, data, &reply);
62 if (result != NO_ERROR) {
63 return result;
64 }
65 bool nonNull = reply.readInt32();
66 if (nonNull) {
67 *buf = new GraphicBuffer();
68 reply.read(**buf);
69 }
70 result = reply.readInt32();
71 return result;
72 }
73
setBufferCount(int bufferCount)74 virtual status_t setBufferCount(int bufferCount)
75 {
76 Parcel data, reply;
77 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
78 data.writeInt32(bufferCount);
79 status_t result =remote()->transact(SET_BUFFER_COUNT, data, &reply);
80 if (result != NO_ERROR) {
81 return result;
82 }
83 result = reply.readInt32();
84 return result;
85 }
86
dequeueBuffer(int * buf,uint32_t w,uint32_t h,uint32_t format,uint32_t usage)87 virtual status_t dequeueBuffer(int *buf, uint32_t w, uint32_t h,
88 uint32_t format, uint32_t usage) {
89 Parcel data, reply;
90 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
91 data.writeInt32(w);
92 data.writeInt32(h);
93 data.writeInt32(format);
94 data.writeInt32(usage);
95 status_t result = remote()->transact(DEQUEUE_BUFFER, data, &reply);
96 if (result != NO_ERROR) {
97 return result;
98 }
99 *buf = reply.readInt32();
100 result = reply.readInt32();
101 return result;
102 }
103
queueBuffer(int buf,int64_t timestamp,uint32_t * outWidth,uint32_t * outHeight,uint32_t * outTransform)104 virtual status_t queueBuffer(int buf, int64_t timestamp,
105 uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) {
106 Parcel data, reply;
107 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
108 data.writeInt32(buf);
109 data.writeInt64(timestamp);
110 status_t result = remote()->transact(QUEUE_BUFFER, data, &reply);
111 if (result != NO_ERROR) {
112 return result;
113 }
114 *outWidth = reply.readInt32();
115 *outHeight = reply.readInt32();
116 *outTransform = reply.readInt32();
117 result = reply.readInt32();
118 return result;
119 }
120
cancelBuffer(int buf)121 virtual void cancelBuffer(int buf) {
122 Parcel data, reply;
123 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
124 data.writeInt32(buf);
125 remote()->transact(CANCEL_BUFFER, data, &reply);
126 }
127
setCrop(const Rect & reg)128 virtual status_t setCrop(const Rect& reg) {
129 Parcel data, reply;
130 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
131 data.writeFloat(reg.left);
132 data.writeFloat(reg.top);
133 data.writeFloat(reg.right);
134 data.writeFloat(reg.bottom);
135 status_t result = remote()->transact(SET_CROP, data, &reply);
136 if (result != NO_ERROR) {
137 return result;
138 }
139 result = reply.readInt32();
140 return result;
141 }
142
setTransform(uint32_t transform)143 virtual status_t setTransform(uint32_t transform) {
144 Parcel data, reply;
145 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
146 data.writeInt32(transform);
147 status_t result = remote()->transact(SET_TRANSFORM, data, &reply);
148 if (result != NO_ERROR) {
149 return result;
150 }
151 result = reply.readInt32();
152 return result;
153 }
154
setScalingMode(int mode)155 virtual status_t setScalingMode(int mode) {
156 Parcel data, reply;
157 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
158 data.writeInt32(mode);
159 status_t result = remote()->transact(SET_SCALING_MODE, data, &reply);
160 if (result != NO_ERROR) {
161 return result;
162 }
163 result = reply.readInt32();
164 return result;
165 }
166
query(int what,int * value)167 virtual int query(int what, int* value) {
168 Parcel data, reply;
169 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
170 data.writeInt32(what);
171 status_t result = remote()->transact(QUERY, data, &reply);
172 if (result != NO_ERROR) {
173 return result;
174 }
175 value[0] = reply.readInt32();
176 result = reply.readInt32();
177 return result;
178 }
179
setSynchronousMode(bool enabled)180 virtual status_t setSynchronousMode(bool enabled) {
181 Parcel data, reply;
182 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
183 data.writeInt32(enabled);
184 status_t result = remote()->transact(SET_SYNCHRONOUS_MODE, data, &reply);
185 if (result != NO_ERROR) {
186 return result;
187 }
188 result = reply.readInt32();
189 return result;
190 }
191
connect(int api,uint32_t * outWidth,uint32_t * outHeight,uint32_t * outTransform)192 virtual status_t connect(int api,
193 uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) {
194 Parcel data, reply;
195 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
196 data.writeInt32(api);
197 status_t result = remote()->transact(CONNECT, data, &reply);
198 if (result != NO_ERROR) {
199 return result;
200 }
201 *outWidth = reply.readInt32();
202 *outHeight = reply.readInt32();
203 *outTransform = reply.readInt32();
204 result = reply.readInt32();
205 return result;
206 }
207
disconnect(int api)208 virtual status_t disconnect(int api) {
209 Parcel data, reply;
210 data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
211 data.writeInt32(api);
212 status_t result =remote()->transact(DISCONNECT, data, &reply);
213 if (result != NO_ERROR) {
214 return result;
215 }
216 result = reply.readInt32();
217 return result;
218 }
219 };
220
221 IMPLEMENT_META_INTERFACE(SurfaceTexture, "android.gui.SurfaceTexture");
222
223 // ----------------------------------------------------------------------
224
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)225 status_t BnSurfaceTexture::onTransact(
226 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
227 {
228 switch(code) {
229 case REQUEST_BUFFER: {
230 CHECK_INTERFACE(ISurfaceTexture, data, reply);
231 int bufferIdx = data.readInt32();
232 sp<GraphicBuffer> buffer;
233 int result = requestBuffer(bufferIdx, &buffer);
234 reply->writeInt32(buffer != 0);
235 if (buffer != 0) {
236 reply->write(*buffer);
237 }
238 reply->writeInt32(result);
239 return NO_ERROR;
240 } break;
241 case SET_BUFFER_COUNT: {
242 CHECK_INTERFACE(ISurfaceTexture, data, reply);
243 int bufferCount = data.readInt32();
244 int result = setBufferCount(bufferCount);
245 reply->writeInt32(result);
246 return NO_ERROR;
247 } break;
248 case DEQUEUE_BUFFER: {
249 CHECK_INTERFACE(ISurfaceTexture, data, reply);
250 uint32_t w = data.readInt32();
251 uint32_t h = data.readInt32();
252 uint32_t format = data.readInt32();
253 uint32_t usage = data.readInt32();
254 int buf;
255 int result = dequeueBuffer(&buf, w, h, format, usage);
256 reply->writeInt32(buf);
257 reply->writeInt32(result);
258 return NO_ERROR;
259 } break;
260 case QUEUE_BUFFER: {
261 CHECK_INTERFACE(ISurfaceTexture, data, reply);
262 int buf = data.readInt32();
263 int64_t timestamp = data.readInt64();
264 uint32_t outWidth, outHeight, outTransform;
265 status_t result = queueBuffer(buf, timestamp,
266 &outWidth, &outHeight, &outTransform);
267 reply->writeInt32(outWidth);
268 reply->writeInt32(outHeight);
269 reply->writeInt32(outTransform);
270 reply->writeInt32(result);
271 return NO_ERROR;
272 } break;
273 case CANCEL_BUFFER: {
274 CHECK_INTERFACE(ISurfaceTexture, data, reply);
275 int buf = data.readInt32();
276 cancelBuffer(buf);
277 return NO_ERROR;
278 } break;
279 case SET_CROP: {
280 Rect reg;
281 CHECK_INTERFACE(ISurfaceTexture, data, reply);
282 reg.left = data.readFloat();
283 reg.top = data.readFloat();
284 reg.right = data.readFloat();
285 reg.bottom = data.readFloat();
286 status_t result = setCrop(reg);
287 reply->writeInt32(result);
288 return NO_ERROR;
289 } break;
290 case SET_TRANSFORM: {
291 CHECK_INTERFACE(ISurfaceTexture, data, reply);
292 uint32_t transform = data.readInt32();
293 status_t result = setTransform(transform);
294 reply->writeInt32(result);
295 return NO_ERROR;
296 } break;
297 case SET_SCALING_MODE: {
298 CHECK_INTERFACE(ISurfaceTexture, data, reply);
299 int mode = data.readInt32();
300 status_t result = setScalingMode(mode);
301 reply->writeInt32(result);
302 return NO_ERROR;
303 } break;
304 case QUERY: {
305 CHECK_INTERFACE(ISurfaceTexture, data, reply);
306 int value;
307 int what = data.readInt32();
308 int res = query(what, &value);
309 reply->writeInt32(value);
310 reply->writeInt32(res);
311 return NO_ERROR;
312 } break;
313 case SET_SYNCHRONOUS_MODE: {
314 CHECK_INTERFACE(ISurfaceTexture, data, reply);
315 bool enabled = data.readInt32();
316 status_t res = setSynchronousMode(enabled);
317 reply->writeInt32(res);
318 return NO_ERROR;
319 } break;
320 case CONNECT: {
321 CHECK_INTERFACE(ISurfaceTexture, data, reply);
322 int api = data.readInt32();
323 uint32_t outWidth, outHeight, outTransform;
324 status_t res = connect(api,
325 &outWidth, &outHeight, &outTransform);
326 reply->writeInt32(outWidth);
327 reply->writeInt32(outHeight);
328 reply->writeInt32(outTransform);
329 reply->writeInt32(res);
330 return NO_ERROR;
331 } break;
332 case DISCONNECT: {
333 CHECK_INTERFACE(ISurfaceTexture, data, reply);
334 int api = data.readInt32();
335 status_t res = disconnect(api);
336 reply->writeInt32(res);
337 return NO_ERROR;
338 } break;
339 }
340 return BBinder::onTransact(code, data, reply, flags);
341 }
342
343 // ----------------------------------------------------------------------------
344
345 }; // namespace android
346